CN214180032U - Brake device of electric curtain and electric curtain - Google Patents

Abstract

The application discloses a brake device of an electric curtain and the electric curtain, which comprise a driving part; the driven part is in transmission connection with the driving part; a fixed disc arranged around the driven member; the rolling shaft is arranged between the driven part and the fixed disc; when the electric curtain works normally, the driving part rotates to drive the rolling shaft to rotate, and the driven part is driven to rotate through the rolling shaft; electric window curtain stop work during, the driving part stall, the follower receives continue to rotate during the pulling force of (window) curtain, the follower makes the roller bearing stall through cliping the roller bearing with the fixed plate, accomplishes the brake, and the external brake equipment of this application has the power of outside to produce the power to the follower after the brake, clips the roller bearing through follower and fixed plate, forces the roller bearing stall, accomplishes the brake, has the big and long service life's of braking power characteristics for pure iron brake and spring brake.

Description

Brake device of electric curtain and electric curtain

Technical Field

The application relates to the technical field of electric curtains, in particular to a brake device of an electric curtain and the electric curtain.

Background

Along with the continuous improvement of the technological level, more and more intelligent home furnishings appear in the life of people and are loved by most modern people, and the electric curtain is taken as one of the representatives of the intelligent home furnishing, so that the life of people is facilitated.

The electric curtain realizes the opening and closing of the curtain in an electric control mode, a user can operate the opening and closing of the curtain through wired or wireless control, the electric curtain is very convenient and intelligent to use, the appearance of the electric curtain is basically not different from that of a common curtain, the electric curtain has the functions of shading and blocking the sun of the common curtain, and the electric curtain also has unique advantages that the common curtain does not have.

Because the existing electric curtain has the common conditions of small brake and short service life in the brake, the service life of the whole electric curtain is also shortened, and a scheme capable of solving the problem is urgently needed in the industry.

SUMMERY OF THE UTILITY MODEL

The application aims to provide a brake device of an electric curtain and the electric curtain, wherein the brake device has large braking force and long service life.

The application discloses a brake device of an electric curtain, which comprises a driving part, a driven part, a fixed disc and a rolling shaft; the driven part is in transmission connection with the driving part; the fixed disc is arranged around the driven member; the rolling shaft is arranged between the driven part and the fixed plate; when the electric curtain works normally, the driving part drives the driven part to rotate through the rolling shaft; when the electric curtain stops working, the driving part and the rolling shaft stop rotating, the driven part continues rotating when being subjected to the pulling force of the curtain, the rolling shaft is driven to continue rotating, and when the driven part rotates to be close to the driving part, the driving part stops rotating to complete braking.

Optionally, there are at least 3 rolling shafts, and the rolling shafts are uniformly distributed between the driven member and the fixed plate.

Optionally, the driving part includes at least three driving part fingers, which are disposed between the rollers, and the driving part fingers protrude from the driving part in a direction approaching the fixed plate.

Optionally, the height of the driving piece pusher dog is less than or equal to the height of the roller.

Optionally, the driven part includes driven shaft and driven plate, the driven shaft with the driven plate riveting, the driven shaft is connected with a bearing, the bearing is hollow structure, the diameter of driven shaft with the diameter of the hollow position of bearing equals.

Optionally, the follower includes the follower pusher dog, brake equipment includes shell, end cover and apron, the shell centers on the price fixing sets up, the end cover with the apron is used for the lid to close the shell, the shell includes the damping recess, the follower pusher dog with the damping recess corresponds the setting, prevents after the brake the driven shaft continuously rocks.

Optionally, a first gap is formed between the rolling shaft and the fixed plate, a second gap is formed between the rolling shaft and the driven plate, and the width of the first gap and the width of the second gap are less than or equal to 0.5 cm.

Optionally, the driving part comprises a driving shaft, a wheel disc and a boss arranged on the wheel disc, the driving shaft penetrates through the boss and the wheel disc, and a motor of the electric curtain drives the driving part to rotate through the driving shaft.

The application also discloses electric window curtain's brake equipment includes: the driving part comprises a driving shaft, a wheel disc and a boss arranged on the wheel disc, the driving shaft penetrates through the boss and the wheel disc, and a motor of the electric curtain drives the driving part to rotate through the driving shaft; the driven part is in transmission connection with the driving part and comprises a driven shaft and a driven disc, the driven disc is triangular, and two notches are formed in three edges of the driven disc; a fixed disc arranged around the driven member; the number of the rolling shafts is 6, and the rolling shafts are respectively and uniformly arranged in the notches of the driven disc; the driving part also comprises 3 driving part shifting claws, the 3 driving part shifting claws are respectively arranged between the rolling shafts, and the height of the driving part shifting claw is less than or equal to that of the rolling shaft; the driven part comprises 3 driven part pusher dogs, and the 3 driven part pusher dogs are uniformly arranged on one surface of the driven plate, which is opposite to the rolling shaft;

the brake device further includes: the shell is of a hollow structure and is used for placing the driving part and the driven part; the cover plate is used for covering the wheel disc of the driving part and the shell; and an end cap that covers the other port of the housing; the shell is arranged around the fixed disc, the end cover and the cover plate are used for covering the shell, and the height of the shell is greater than or equal to that of the driven shaft; the shell is arranged around the fixed disc, the end cover and the cover plate are used for covering the shell, and the height of the shell is greater than or equal to that of the driven shaft; the shell comprises a damping groove, damping oil is placed in the damping groove, and the driven part pusher dog and the damping groove are correspondingly arranged; the brake device is arranged at the front end of the electric serially-connected speed reducer, and when the electric curtain works normally, the driving part drives the driven part to rotate through the rolling shaft; when the electric curtain stops working, the driving part and the rolling shaft stop rotating, the driven part continues rotating when being subjected to the pulling force of the curtain, the rolling shaft is driven to continue rotating, and when the driven part rotates to be close to the driving part, the driving part stops rotating to complete braking.

The application also discloses electric window curtain, including motor, reduction gear and the aforesaid arbitrary electric window curtain's brake equipment, brake equipment sets up the front end of speed reduction mouth, the motor with reduction gear drive connects, the reduction gear with brake equipment transmission connects.

According to the braking device of the electric curtain, the braking effect is achieved through the matching of the driving part, the driven part, the fixed disc and the rolling shaft, and when the electric curtain works normally, the driving part drives the driven part to rotate through the rolling shaft; when the electric curtain stops working, the driving part and the rolling shaft stop rotating, the driven part continues to rotate when the driven part is subjected to the pulling force of the curtain, the rolling shaft is driven to continue to rotate, and when the driven part rotates to be close to the driving part, the driven part stops rotating to complete braking, so that the braking effect is realized by only depending on the transmission effect among the driving part, the driven part and the rolling shaft, and the electric curtain has the characteristics of large braking force and long service life relative to a pure iron brake and a spring brake.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the application, are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

FIG. 1 is a schematic view of a brake device of a motorized window treatment according to an embodiment of the present application;

FIG. 2 is a schematic view of the brake device during normal operation of the motorized window treatment according to an embodiment of the present application;

FIG. 3 is a schematic view of the brake device when the motorized window treatment of the present application is stopped;

FIG. 4 is a schematic view of an active member of a brake apparatus according to an embodiment of the present application;

FIG. 5 is a schematic view of a portion of a brake apparatus according to an embodiment of the present application;

FIG. 6 is a schematic view of a portion of a driven member of a motorized window treatment according to an embodiment of the present application;

FIG. 7 is a schematic view of a portion of a motorized window treatment according to an embodiment of the present application;

FIG. 8 is a schematic view of a driven member of a motorized window treatment according to an embodiment of the present application;

fig. 9 is a schematic view of a motorized window treatment according to an embodiment of the present application.

100, an electric curtain; 200. a brake device; 210. a driving member; 211. a driving member pusher dog; 212. a drive shaft; 213. a wheel disc; 214. a boss; 220. a driven member; 221. a driven shaft; 222. a driven plate; 223. a recess; 224. a follower finger; 230. fixing a disc; 231. A first gap; 240. a roller; 241. a second gap; 250. a housing; 251. a damping groove; 260. a cover plate; 270. an end cap; 280. a bearing; 300. a speed reducer; 400. a motor.

Detailed Description

It is to be understood that the terminology, the specific structural and functional details disclosed herein are for the purpose of describing particular embodiments only, and are representative, but that the present application may be embodied in many alternate forms and should not be construed as limited to only the embodiments set forth herein.

In the description of the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating relative importance or as implicitly indicating the number of technical features indicated. Thus, unless otherwise specified, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; "plurality" means two or more. The terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that one or more other features, integers, steps, operations, elements, components, and/or combinations thereof may be present or added.

Further, terms of orientation or positional relationship indicated by "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, are described based on the orientation or relative positional relationship shown in the drawings, are simply for convenience of description of the present application, and do not indicate that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application.

Furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and may include, for example, fixed connections, removable connections, and integral connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

The present application is described in detail below with reference to the figures and alternative embodiments.

As shown in fig. 1, the present application discloses a brake device 200 of a motorized window treatment 100, and it should be noted that the brake device 200 is not limited to be used in the motorized window treatment 100, but may also be applied to other window treatments or any other structures or devices requiring braking, and the brake device 200 includes a driving member 210, a driven member 220, a fixed plate 230 and a rolling shaft 240; the driven part 220 is in transmission connection with the driving part 210; the fixed plate 230 is arranged around the driven member 220; the roller 240 is disposed between the driven member 220 and the fixed plate 230; when the electric window curtain 100 normally works, the driving part 210 rotates to drive the rolling shaft 240 to rotate, and the rolling shaft 240 drives the driven part 220 to rotate; when the electric curtain 100 stops working, the driving member 210 stops rotating, the driven member 220 continues rotating when being pulled by the curtain, and the roller 240 is driven to continue rotating, but the roller 240 cannot rotate because the driven member 220 and the fixed plate 230 clamp the roller 240 at this time; because electronic series connection is behind the brake, driving part 210 can stop rotating, but follower 220 can receive the exogenic action to rotate, when follower 220 rotates, can drive roller 240 and rotate, nevertheless because roller 240 receives the restriction of price fixing 230 and driving part 210, follower 220 can't realize rotating to realize the braking effect.

Roller 240 is provided with a plurality ofly, is 3 at least, so rotate more fast, and roller 240 generally is the cylinder, and the volume is less easily placed, and a plurality of roller 240 evenly distributed are in follower 220 with between the price fixing 230, rotate through a plurality of roller 240, so be in when electric window curtain 100 normally works, can accelerate the slew velocity of follower 220, when electronic series connection stop work, also can realize brake braking fast.

Taking 6 rolling shafts 240 as an example, the driving part 210 includes at least 3 driving part fingers 211, the driving part fingers 211 are disposed between the rolling shafts 240, the driving part fingers 211 protrude from the driving part 210 in a direction close to the fixed plate 230, and the driving part fingers 211 block the driven part 220 when the driven part 220 receives an external force to rotate, so as to prevent the driven part 220 from continuing to rotate after being braked again.

Further, the brake device 200 includes a housing, an end cap 270 and a cover plate 260, the housing surrounds the fixed plate 230, the end cap 270 and the cover plate 260 are used for covering the housing, the height of the housing is greater than or equal to that of the driven shaft 221, the driving part 210 and the driven part 220 are protected by the housing, the end cap 270 and the cover plate 260, the diameter of the housing 250 is greater than that of the fixed plate 230, the end cap 270 is provided with a protruding structure to be clamped with the housing 250, the cover plate 260 is provided with an inner groove to be used for placing the driving part 210, the periphery of the cover plate 260 is provided with a vertical groove pair located on a convex block on the periphery of the fixed plate 230, and the parts are buckled with each other in a ring manner, so that the brake device has extremely high stability.

Referring to fig. 1 to 3, wherein fig. 2 is a schematic view illustrating the operation of the braking device when the motorized window shade is in normal operation; in fig. 2, 2A is a schematic working diagram of the driving member rotating counterclockwise and the driven member rotating through the roller; in fig. 2, 2B is a schematic working diagram of clockwise rotation of the driving member and rotation of the driven member through the roller; FIG. 3 is a schematic view of the brake device when the motorized window shade stops; in FIG. 3, 3A is a schematic diagram of the operation of the driven member rotating counterclockwise and the driven member and the fixed plate braking by clamping the roller; 3B in FIG. 3 is a schematic diagram of the operation of the driven member rotating clockwise, the driven member and the fixed plate braking by clamping the roller; when the electric curtain 100 normally works, the motor 400 drives the curtain to actively rotate, which is indicated by two conditions, namely clockwise rotation and anticlockwise rotation, 6 rollers are divided into two groups, each group is 3, the rollers rotate respectively by three different rollers when rotating clockwise and anticlockwise, the driving part 210 drives the roller 240 to rotate when rotating, and drives the driven part 220 to rotate when the roller 240 rotates, so that the curtain is lifted; when the motorized window shade 100 stops operating, the motor 400 stops rotating, the driving member 210 stops rotating, and at this time, the driven member 220 rotates due to external force, and the driven member 220 and the fixed plate 230 brake by clamping the roller 240.

Further, the height of the driving part pusher dog 211 is less than or equal to the height of the roller 240, when the braking action is performed, the roller 240 can be prevented from continuously rotating, the roller 240 is limited, the driven part 220 comprises a driven shaft 221 and a driven disc 222, the driven shaft 221 is riveted with the driven disc 222, the driven shaft 221 is connected with a bearing 280, the bearing 280 is of a hollow structure, the diameter of the driven shaft 221 is equal to that of the hollow position of the bearing 280, the driven disc 222 and the roller 240 are placed together, and the roller 240 is better limited.

A first gap 231 is arranged between the roller 240 and the fixed plate 230, a second gap 241 is arranged between the roller 240 and the driven plate 222, the width of the first gap 231 and the width of the second gap 241 are less than or equal to 0.5 cm, and the smaller the gap between the roller 240 and the fixed plate 230 is, the better the spacing effect between the driven member 220 and the fixed plate 230 is, during braking, the better the spacing effect is, the width of the first gap 231 can be equal to the width of the second gap 241, or can be smaller than the width of the second gap 241, and can be set according to specific situations.

Referring to fig. 4, for the driving element 210, in addition to the driving element pusher dog 211, the driving element 210 includes a driving shaft 212, a wheel disc 213 and a boss 214 disposed on the wheel disc 213, the driving shaft 212 passes through the boss 214 and the wheel disc 213, the motor of the electric window curtain 100 drives the driving element 210 to rotate through the driving shaft 212, the three driving element pusher dogs 211 are disposed on the wheel disc 213 in an equilateral triangle shape, and the end of the driving shaft 212 is disposed in the wheel disc 213 in a rectangular parallelepiped shape and does not exceed the surface of the wheel disc 213.

Referring to fig. 5 and 6, the driven shaft 221 of the driven member 220 and the driven disc 222 are integrally arranged, the other end of the driven shaft 221 passes through the bearing 280 and the end cover 270, the bearing 280 and the end cover 270 are used for protecting the driven shaft 221, the driven disc 222 of the driven member 220 is triangular, three vertexes are connected and then form an equilateral triangle, but it should be noted that three sides are curved sides, both ends of each curved side are recessed inwards, and the middle of each curved side is protruded outwards to form two notches 223 for placing the roller 240, after the driven shaft 221 rotates, the protruding parts of the curved sides and the fixed disc 230 can well clamp the roller 240, but the roller 240 cannot move, so as to achieve a better braking effect.

In addition, referring to fig. 7 and 8, because there is the clearance during braking, the driven shaft of follower can have the problem of rocking, so during braking, owing to receive external force, the follower rotates and can lead to the axle to rock, so be provided with follower pusher dog 224 at the back of the driven plate of follower, the positive drive piece that corresponds of driven plate, the follower pusher dog 224 at the back sets up at least three, generally the same with the quantity of drive piece pusher dog, its position can be mutually wrong with the drive piece pusher dog, for the braking effect of cooperation follower pusher dog be provided with damping recess 251 on the shell 250, can place damping material in the damping recess 251, for example can place damping oil and rubber, so during braking, can prevent the drive piece pusher dog owing to receive the effect of damping material to stop rocking.

As shown in fig. 1 and fig. 4 to 8, the present application further discloses a brake device 200 of the motorized window shade 100, comprising: the driving part 210 comprises a driving shaft 212, a wheel disc 213 and a boss 214 arranged on the wheel disc 213, the driving shaft 212 penetrates through the boss 214 and the wheel disc 213, and the motor 400 of the electric curtain 100 drives the driving part 210 to rotate through the driving shaft 212; the driven part 220 is in transmission connection with the driving part 210, the driven part 220 comprises a driven shaft 221 and a driven disc 222, the driven disc 222 is triangular, and two notches 223 are formed in three sides of the driven disc 222; a fixed plate 230 disposed around the follower 220; the number of the rollers 240 is 6, and the rollers are respectively and uniformly arranged in the notches 223 of the driven disc 222; the driving part 210 further includes 3 driving part fingers 211, the 3 driving part fingers 211 are respectively disposed between the rollers 240, and the height of the driving part fingers 211 is less than or equal to the height of the rollers 240; the follower includes 3 follower fingers 224, and 3 follower fingers 224 are uniformly disposed on a side of the driven plate 222 opposite the roller 240.

The brake apparatus 200 further includes: a housing 250 having a hollow structure for accommodating the driving member 210 and the driven member 220; a cover plate 260 for covering the wheel disc 213 of the driving part 210 and the outer shell 250; and an end cap 270 covering the other port of the housing 250; the outer shell 250 is arranged around the fixed plate 230, the end cover 270 and the cover plate 260 are used for covering the outer shell 250, and the height of the outer shell 250 is greater than or equal to that of the driven shaft 221; the shell comprises a damping groove, damping oil is placed in the damping groove, and the driven part pusher dog and the damping groove are correspondingly arranged; when the brake is used, the driving part pusher dog can be prevented from stopping shaking due to the action of the damping material.

The brake device 200 is disposed at the front end of the electrically-connected reducer 300, and when the electrically-driven window curtain 100 normally works, the driving member 210 drives the driven member 220 to rotate through the roller 240; when the electric curtain 100 stops working, the driving member 210 stops rotating, the driven member 220 continues rotating when being pulled by the curtain, the roller is clamped by the driven member and the fixed plate, the roller is forced to stop rotating, and braking is completed.

As shown in fig. 7, the present application further discloses a motorized window treatment 100, which includes a motor 400, a speed reducer 300 and the brake device 200 of the motorized window treatment 100, wherein the brake device 200 is disposed at the front end of the speed reducing port, the motor 400 is in transmission connection with the speed reducer 300, and the speed reducer 300 is in transmission connection with the brake device 200.

The foregoing is a more detailed description of the present application in connection with specific alternative embodiments, and the specific implementations of the present application are not to be considered limited to these descriptions. For those skilled in the art to which the present application pertains, several simple deductions or substitutions may be made without departing from the concept of the present application, and all should be considered as belonging to the protection scope of the present application.

Claims (10)

1. A brake device for a motorized window treatment, comprising:

a driving member;

the driven part is in transmission connection with the driving part;

a fixed disc arranged around the driven member;

the rolling shaft is arranged between the driven part and the fixed disc;

when the electric curtain works normally, the driving part rotates to drive the rolling shaft to rotate, and the driven part is driven to rotate through the rolling shaft; when the electric curtain stops working, the driving part stops rotating, the driven part continues rotating when being subjected to the pulling force of the curtain, and the driven part and the fixed disc clamp the rolling shaft to stop rotating the rolling shaft, so that braking is completed.

2. The brake apparatus for a motorized window treatment of claim 1, wherein there are at least three of said rollers, said rollers being evenly spaced between said driven member and said fixed plate.

3. The brake apparatus for motorized window treatment of claim 2, wherein said driving member comprises at least three driving member fingers disposed between said rollers, said driving member fingers protruding from said driving member in a direction toward said fixed plate.

4. The brake apparatus for a motorized window treatment of claim 3, wherein the height of the drive member finger is less than or equal to the height of the roller.

5. The brake apparatus for a motorized window treatment of claim 4, wherein the driven member comprises a driven shaft and a driven disc, the driven shaft is riveted with the driven disc, the driven shaft is connected with a bearing, the bearing is of a hollow structure, and the diameter of the driven shaft is equal to the diameter of the hollow position of the bearing.

6. The brake apparatus for a motorized window treatment of claim 5, wherein the driven member comprises a driven member finger, the brake apparatus comprises a housing, an end cap and a cover plate, the housing is disposed around the fixed plate, the end cap and the cover plate are used for covering the housing, the housing comprises a damping groove, the driven member finger is disposed corresponding to the damping groove to prevent the driven shaft from continuously shaking after braking.

7. The brake apparatus for motorized window shades of claim 5, wherein a first gap is disposed between the roller and the fixed plate, a second gap is disposed between the roller and the driven plate, and a width of the first gap and a width of the second gap are less than or equal to 0.5 cm.

8. The brake apparatus of the motorized window treatment of claim 7, wherein the driving member comprises a driving shaft, a wheel disc, and a boss disposed on the wheel disc, the driving shaft passes through the boss and the wheel disc, and the motor of the motorized window treatment drives the driving member to rotate through the driving shaft.

9. A brake device for a motorized window treatment, comprising:

the driving part comprises a driving shaft, a wheel disc and a boss arranged on the wheel disc, the driving shaft penetrates through the boss and the wheel disc, and a motor of the electric curtain drives the driving part to rotate through the driving shaft;

the driven part is in transmission connection with the driving part and comprises a driven shaft and a driven disc, the driven disc is triangular, and two notches are formed in three edges of the driven disc;

a fixed disc arranged around the driven member;

the number of the rolling shafts is 6, and the rolling shafts are respectively and uniformly arranged in the notches of the driven disc;

the driving part also comprises 3 driving part shifting claws, the 3 driving part shifting claws are respectively arranged between the rolling shafts, and the height of the driving part shifting claw is less than or equal to that of the rolling shaft;

the driven part comprises 3 driven part pusher dogs, and the 3 driven part pusher dogs are uniformly arranged on one surface of the driven plate, which is opposite to the rolling shaft;

the brake device further includes:

the shell is of a hollow structure and is used for placing the driving part and the driven part;

the cover plate is used for covering the wheel disc of the driving part and the shell;

an end cap covering the other port of the housing;

the shell is arranged around the fixed disc, the end cover and the cover plate are used for covering the shell, and the height of the shell is greater than or equal to that of the driven shaft; the shell comprises a damping groove, damping oil is placed in the damping groove, and the driven part pusher dog and the damping groove are correspondingly arranged;

the brake device is arranged at the front end of the electric serially-connected speed reducer, and when the electric curtain works normally, the driving part drives the driven part to rotate through the rolling shaft; when the electric curtain stops working, the driving part and the rolling shaft stop rotating, the driven part continues rotating when being subjected to the pulling force of the curtain, the rolling shaft is driven to continue rotating, and when the driven part rotates to be close to the driving part, the driving part stops rotating to complete braking.

10. A motorized window treatment, comprising a motor, a speed reducer, and a braking device of the motorized window treatment according to any one of claims 1 to 9, wherein the braking device is disposed at a front end of the speed reducer, the motor is in transmission connection with the speed reducer, and the speed reducer is in transmission connection with the braking device.

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